JPH05280490A - Electric fan - Google Patents

Abstract

PURPOSE:To permit the efficient circulation by dissolving the temperature unevenness in a room, in warming and cooling, by automatically operation- controlling an electric fan according to the temperature unevenness. CONSTITUTION:The temperature at the upper part of a room is detected by the first temperature sensor 7 of a transmitter 5, and transmission-received by an electric fan 6 placed on a floor. While, the temperature in the lower part of the room is detected by the second temperature sensor 15 on the electric fan 6 side, and the temperature difference is detected by a controller including a microcomputer in the electric fan 6, and when it is judged that the temperature difference is over a prescribed value, the electric fan 6 is revolved, and the temperature unevenness is dissolved by circulation, and a proper temperature is generated, and when the temperature unevenness is eliminated, operation is brougt into stop.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a fan.

[0002]

2. Description of the Related Art Recently, many air conditioners and air conditioners such as fan heaters (hereinafter referred to as "air conditioners") have become widespread in each home. The air conditioners are used for cooling the room in the summer and indoors in the winter. It is designed to be heated and comfortable for the whole year. In many of such air conditioners and the like, when the temperature is set by the temperature setting means provided in the air conditioners and the like during cooling and heating, the room temperature is kept at a desired temperature based on the set temperature.

[0003]

When the room is heated by an air conditioner, a fan heater or the like in winter, temperature unevenness occurs such as warm air in the upper part of the room and cold air in the lower part.

Therefore, if the set temperature is raised to heat the entire room to heat the room, the upper part becomes too hot and the heating cost is wasted.

Generally, an air conditioner or the like uses temperature information from a built-in temperature sensor, for example, when it is determined that the room temperature during heating is higher than a set temperature, the air conditioner is temporarily stopped, and when it is determined that the temperature is lower than the set temperature. The operation is restarted so that the temperature inside the room is controlled to a constant temperature.

However, when heating is performed by an air conditioner mounted on a wall, warm air is accumulated upward, so that the room temperature detected by the temperature sensor becomes higher than the room lower temperature, and the air conditioner stops even if the temperature lower in the room is low. Therefore, there is a problem that the lower part of the room does not become warm forever.

On the other hand, when considering the cooling operation in the summer, the cold air accumulates in the lower part of the room, and on the contrary, the upper part of the room becomes warmer, which causes the temperature unevenness. Therefore, the room temperature detected by a temperature sensor such as an air conditioner becomes higher than the lower temperature inside the room where the user is, and when the air conditioner operates to reach the set temperature, the lower room temperature becomes lower than the set temperature. The person was too cold.

In order to reduce such temperature unevenness during cooling and heating, it is effective to perform the circulation using a fan.

However, it is troublesome for a person to switch on and off the fan to operate it. Also, if the room is not warm enough and there is little temperature unevenness, turning the fan on will make people feel cold, and turn it on when the upper part of the room is too warm and temperature unevenness is large. It seems that there is no effect of circulation and the heating cost is wasted.

Similarly, if the room is turned in the summer when it is not cold, it feels warm and uncomfortable, and if it is turned too cold, the cooling cost is wasted.

Therefore, the present invention provides a fan that senses temperature unevenness in a room and automatically operates the fan to automatically eliminate the temperature unevenness and save energy without performing a troublesome operation. The purpose is to

[0012]

According to the present invention, there is provided a first temperature sensor, a transmitter for transmitting a temperature detected by the first temperature sensor, a second temperature sensor, and a receiver for receiving a signal from the transmitter. A fan provided with a control circuit that drives a blower fan when a difference between a temperature detected by the first temperature sensor and a temperature detected by the second temperature sensor is equal to or more than a predetermined value. Is.

[0013]

The upper temperature of the room detected by the first temperature sensor is transmitted to the fan, while the lower temperature of the room is detected by the second temperature sensor provided in the fan. Then, the temperature difference between the upper and lower parts of the room is grasped by the control circuit including the microcomputer built into the fan, and when it is judged that there is a certain temperature difference and the temperature unevenness is large, the fan is turned and effective circulation is performed.
The operation of the fan is stopped when the temperature unevenness is resolved by performing the ratio reduction and the temperature difference is reduced and the temperature unevenness disappears.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

First, in FIG. 1, reference numeral 1 denotes an air conditioner attached to the upper part of the wall 3 of the room 2, which is operated in cooling in summer and heating in winter. During the heating operation in winter, warm air 4 is trapped in the upper part of the room 2. In addition, even during the cooling operation in the summer, the upper part of the room is slightly higher in temperature than the lower part of the room.

A transmitter 5 which is an accessory of the fan 6 of the present invention placed on the floor of the room 2 has a first temperature sensor 7 and is mounted above the wall 3 of the room 2 to provide the room 2. The upper temperature of is detected by this first temperature sensor. And the first
The temperature information detected by the temperature sensor 7 is transmitted to the fan 6 side.

On the other hand, the electric fan 6 is a well-known type in which the head 11 swings.
Inside the stand 14 supported via, there are provided a receiving unit for receiving a transmission signal from the transmitter 5, a control circuit unit including a microcomputer for processing the reception signal, and the like. A second temperature sensor 15 is attached to the stand 14 to detect the lower temperature of the room 2 in which the fan 6 is placed. Then, the detected temperature information from the second temperature sensor 15 is also input to the control circuit unit.

Here, the fan 6 is capable of swinging the head portion 11 to the left and right and up and down. In addition to the blower fan driving electric motor for driving the blower fan, a left and right swinging electric motor and a later-described first swinging electric motor. A vertical swinging electric motor, which is related in the second embodiment, is provided.

By the way, in the fan 6 of the present invention, the temperature difference is detected from the temperature information from the first temperature sensor 7 and the temperature information from the second temperature sensor 15 at the time of heating in the winter and the cooling in the summer, and the room temperature is detected. The degree of temperature unevenness is determined, the fan 6 is started to operate when the temperature difference is equal to or more than a predetermined value, and the fan 6 is controlled to stop when the temperature difference falls within a certain range, and efficient circulation is performed. Let The control method will be described below, but only in the case of heating in winter.

The control circuit is shown in FIG.

Inside the transmitter 5, a first temperature sensor 7 and a control circuit 8 for processing temperature information from the sensor 7 are provided.
The circuit is composed of a transmitter 9.

On the other hand, on the side of the fan 6, a control circuit 21 including a microcomputer, a second temperature sensor 15 connected to the control circuit 21, and a receiver 16 for receiving transmission information (detected temperature) from the transmitter 5. , A power supply switch, an air volume changeover switch, and a switch unit 17 such as a mode changeover switch (described later), a blower fan drive that drives a blower fan drive electric motor 18, a left and right swing electric motor 19, and a vertical swing electric motor 20 respectively. The circuit 21, the vertical swing circuit 22, and the horizontal swing circuit 23 are connected to the control circuit 21 and controlled by the control circuit 21.

By the way, in the above-mentioned switch section 17, the mode changeover switch is a normal operation mode when the fan 6 is normally used and a fan depending on temperature unevenness by the microcomputer during heating in winter or cooling in summer. This is for switching to a circulation operation mode for driving and controlling 6, and when the fan is in the normal operation mode, the signal from the transmitter 5 cannot be received by the reception unit 16 or is not received. Also, the control circuit 21 is canceled so as not to be input to the control circuit 21.

The control of the above circuit will be described. The temperature a detected by the first temperature sensor 7 of the transmitter 5 is transmitted to the main body of the fan 6. At this time, since the switch is in the circulation operation mode, the temperature a from the transmitter 5 is received, and the second temperature sensor 15 on the fan 6 side is received.
The difference from the temperature b detected in step S1, that is, the temperature a−the temperature b is detected, and if the difference is, for example, 10 ° C. or more, the control circuit 2
1 controls to start the operation of the fan 6. At this time, in order not to make the user feel cold, it is preferable to drive the vehicle lightly. As a result, the air in the room flows as shown by the solid arrow in FIG. 1, the warm air in the upper part spreads throughout the room 2, and efficient heating is achieved.

When the room 2 is warmed and the temperature difference between the upper part and the lower part of the room 2 is reduced and the temperature difference is within 5 ° C., for example, the control circuit 21 controls to stop the operation of the fan 6.

The flow of the above control is shown in FIGS. In the transmitter 5, the control flow relating to the temperature transmission of FIG. 3 is performed, and the temperature a of the first temperature sensor 7 is measured every 5 minutes (decision 31) (process 32). It is transmitted (process 33).

On the other hand, using the transmitted temperature a, the control flow relating to the automatic operation shown in FIG. 4 is executed on the side of the fan 6. That is, it is determined whether or not the temperature signal a is received (decision 41), and if the temperature signal a is received, the second temperature sensor 1
The temperature b of 5 is measured (process 42), and then it is determined whether the temperature difference (temperature a-temperature b) has spread to 10 ° C. or more (decision 43). The electric motor 18 is driven (process 44). After driving, the temperature difference measured every 5 minutes is checked to determine whether or not the temperature difference is within 5 ° C. (decision 45). After the blower fan driving electric motor 18 is driven, the rotation is continued unless the temperature difference is within 5 ° C. (N in judgment 45). And the temperature difference is 5 ℃
If it is within the range (Y in judgment 45), the blower fan driving electric motor 18 is stopped (process 46).

As a result, the temperature of the upper part of the room is firmly grasped to operate the electric fan, and therefore, when the electric fan is used for the circulation, the operation control can be performed with a good timing and the circulation becomes efficient.

Although the fan 6 is described as a floor-standing type in the above embodiment, control for achieving efficient circulation in the case of a fan used as a wall fan will be described as a second embodiment.

FIG. 5 is an explanatory view of the inside of the room in which the fan 6A basically having the same structure as the fan 6 shown in FIG. Here, the schematic structure of the wall-mounted fan 6A will be described with reference to FIG. 6. The head portion 11a of the wall-mounted fan 6A horizontally projects from the blower fan driving electric motor 18, the vertical swinging electric motor 20, and the blower fan driving electric motor 18. The cover 2 that covers the blower fan 25 that is detachably attached to the rotating shaft 25a, the blower fan driving electric motor 18, and the vertical swing electric motor 20.
6, and a rear guard 26a covering the rear of the blower fan 25,
It has a front guard 26b which covers the front of the blower fan 25 in connection with the rear guard 26a.

In the neck piece 13a, a pivot 27 extending downward from the blower fan driving electric motor 18 is inserted into a boss 28 formed inside to support the head 11a so that the head 11a can be swung left and right. Support. The neck piece 13a is a left-right swing motor 1 that swings the head 11a in the left-right direction via a cam 29 connected to the pivot 27.
Have nine.

On the other hand, the stand 14a includes the neck piece 1
3a is rotatably held in the vertical direction by a support shaft 12a pivotally supported by a column 12a so that the elevation angle of the head 11a can be changed. Further, because of being used as the wall fan 6A, it generally faces downward at a certain angle.

Here, as shown in FIG. 5, a second temperature sensor 15 is provided on the stand 14a on the side of the wall-mounted fan 6A having the above-mentioned structure to detect the upper temperature of the room 2. The remote controller 41 for remotely controlling the wall fan 6A is provided with the first temperature sensor 7 to detect the lower temperature of the room 2. Then, the temperature sensed by the first temperature sensor 7 is transmitted to the wall fan 6A side.

Further, on the side of the wall fan 6A, as in the case of the first embodiment, a receiving section, a control circuit including a microcomputer, a switch section and the like are provided. The temperature difference (temperature a−temperature b) between the detected temperature a of the first temperature sensor 7 transmitted from the remote controller 41 and the ambient temperature b of the wall fan 6A detected by the second temperature sensor 5 is detected, and the temperature is detected. When the difference is, for example, 10 ° C. or more, the wall fan 6A is operated, but at this time, the vertical swing of the wall fan 6A is automatically controlled to the upward posture first, and the upward state is maintained. And start driving.

As a result, the air in the room flows as shown by the arrow in FIG. 6 and the air in the room 2 is agitated without giving a person cold, so that the temperature unevenness in the room 2 can be eliminated in a short time and an appropriate temperature can be obtained. it can. Further, when the temperature difference falls within 5 ° C., for example, the operation of the wall fan 6A is stopped.

In terms of circuit configuration, the transmitter 5 is equivalent to the remote controller 41 in the same manner as in FIG. 2 of the first embodiment, and the vertical swinging electric motor 20 is controlled to be the conventional blower fan driving electric motor 18. It will be added and controlled.

FIG. 7 shows a control flow for starting the operation with the head 11a facing upward when the temperature unevenness exceeds a predetermined level (temperature difference of 10 ° C. or more). The remote controller 41
The flow of temperature transmission on the side is the same as that in FIG. 3, so description will be omitted.

It is judged whether or not the temperature signal a is received from the remote controller 41 (decision 51), and if it is received (decision 5).
1), the temperature b of the second temperature sensor 15 is measured (process 52), and it is determined whether the temperature difference between the temperature a and the temperature b is 10 ° C. or more (decision 53), and the temperature exceeds 10 ° C. (Y in judgment 52), the vertical swing motor 20 is controlled so that the fan head is set to the maximum elevation angle. After the head portion 11a is turned up to the maximum (process 54), the blower fan driving electric motor 18 is driven (process 55). After driving, shift to the main flow.

As described above, when the temperature unevenness exceeds a predetermined level, the head portion 11a is turned upward and the wall fan 6A is turned on.
Can be operated, and efficient circulation can be performed.

In the case of cooling in the summer, the microcomputer judges temperature unevenness and the fans 6 and 6A turn to keep the ambient temperature of the lower part of the room, which is too cold, at the circulation.
It will be relaxed by the ratio, and it will be in a proper temperature cooling condition.

[0041]

As described above, according to the present invention, the temperature of the upper part and the lower part of the room is sensed, the temperature unevenness of the room is accurately grasped from the temperature difference, and the fan is automatically operated to check the temperature. Since the location is set, it is possible to quickly bring the room to an appropriate temperature during heating in the winter and cooling in the summer without any troublesome operations, and it is possible to reliably eliminate uneven temperature and reduce the heating and cooling costs. It also reduces waste and saves energy.

[Brief description of drawings]

FIG. 1 is an explanatory view of a room where heating by an air conditioner during winter is performed by a floor-mounted fan for circulation.

FIG. 2 is a block diagram for performing operation control for eliminating temperature unevenness in a room with the fan.

FIG. 3 is a flow chart relating to temperature detection and transmission by a transmitter 5 which senses and transmits the upper temperature of a room.

FIG. 4 is a flowchart relating to operation control executed on a fan according to temperature unevenness.

[Fig. 5] Heating by an air conditioner in winter is supported by a wall fan.
Explanatory drawing of the room which shows another Example which performs curation.

FIG. 6 is a side sectional view of a wall fan.

FIG. 7 is a flow chart showing a control for operating the wall fan by raising the head to the maximum when temperature unevenness occurs.

[Explanation of symbols]

 1 Air Conditioner 2 Room 6 Fan 6A Wall Fan 7 First Temperature Sensor 15 Second Temperature Sensor 21 Control Circuit 18 Blower Fan Drive Electric Motor 20 Vertical Swing Motor 41 Remote Control

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location G05D 23/00 B 9132-3H

Claims (1)

[Claims] 1. A transmitter having a first temperature sensor for transmitting a temperature detected by the first temperature sensor, a second temperature sensor, a receiver for receiving a signal from the transmitter, and a blower fan driving electric motor. An electric fan provided with a main body having the control circuit for driving a blower fan when a difference between a temperature detected by the first temperature sensor and a temperature detected by the second temperature sensor is a predetermined value or more.